Etymologies

(American Heritage® Dictionary of the English Language, Fourth Edition)

Latin prolusio, from proludere ("to prelude"). (Wiktionary)

Examples

On the other hand, what cackling and strutting must we not often hear and see, when, in some shape of academical prolusion, maiden speech, review article, this or the other well-fledged goose has produced its goose-egg, of quite measurable value, were it the pink of its whole kind; and wonders why all mortals do not wonder!

Her presence was in some measure a restraint on the worthy divine, whose prolusion lasted the longer, and was the more intricate and embarrassed, that he felt himself debarred from rounding it off by his usual alliterative petition for deliverance from Popery, Prelacy, and